MOSES LAKE, Wash. -- Grant County authorities are awaiting results from the Washington State Patrol crime lab to figure out whether two deadly explosions over the weekend in Moses Lake are connected.

The Associated Press reported earlier Wednesday that Chief Deputy Coroner Lynette Henson said that the circumstances at each scene were different and there's nothing to suggest a connection. She said the timing may have been a coincidence, according to the AP story.

However, Grant County Undersheriff John Turley told KREM 2 News authorities aren't ready to make any conclusions.

Autopsies were completed Tuesday on 69-year-old William Walker and 53-year-old Javier Adame. Henson says both died of multiple blast impact injuries. But other conclusions about the deaths remain to be determined by sheriff's investigators.

Walker's family told the Columbia Basin Herald that he may have been killed by an exploding car battery. Police say Adame, whose body was found Sunday in his kitchen, was handling a pipe bomb when it went off.